Glass-chipping machine.



UNITED STATES Patented November 1903. PATENT O FICE.

FRANKJI. BURCH, OF ALLEGHENY, PENNSYLVANIA, ASSIGNOR, BY MESNE ASSIGNMENTS, TO WILLIAMSPORT MIRROR AN D GLASS COMPANY, OF WILLIAMSPORT, PENNSYLVANIA A CORPORATIONOF PENNSYLVANIA GLASS-CHIPPING MACHiNE.

SPECIFIGATION forming part of etters ;Patenta No. ?43,824, datedNovember 10, '1903. Application filed Fehra-y 19,1903. Serial No. 144.i51. (No model.)

To ll whom it may cdcern.-

Be tknown that I, FRANK II. BURCH, a citizen oi' the United States of America, residing at Aiiegheny, in the county of Allegheny 5 and State of Pennsylvania', haveinventedcr 'tnin new and useful Inprovements in' GIa'ss Chipping Machines, of which the following is a speeificat-ion, reference 'being had therein to the accompanying drawings. o r This invention relates to certain new and useful nprovements in giass chipping inachines, and has for its object the projvision of novel means whereby a glass plate may be ehipped at one or mo e points at a single I 5 stroke ofihe ehipper; great lyfacilitat-ing this class 'of work and cheapening the cost ofthe same. v I

'. I In the Construction of -mir'ors, glass signs,

and other articles ot' a like nature it is a com'- zbnon pract ce to 'f chip the edge of the glass pinte 'in such a nanner as to inpart a wavy and ornanental appearanee to the article being produced. lieretofore and before my invention it has been the practice to do this 2 5 by sem-ing the plate on one face adjacent to the edge thereof with a diamond and'then eploy a hand-tool sonewhat in the form of 40 heretefore experienced is obyiated, and the:

'rapidity with which' the wo-kfnay be aceomplished is greatiy faeiiitated, besides assuring the chipped o'r cut-away sections being of uniform size throughout, and the dangerof 5 injnring thcpiate being operated upon is re'- duecd to a minimum. 4

In order to enable those sl-illed in the art to practice the invention, reference will be had in the accompanying description to the i s'o drawin ii'rewith, and wherein'iike numr:

'side elevation of the eu'tter-head.

'my invention has been praeticcd by me I hare als of 'reference wiilbc enployed to designa-te like paris throughout the different views, in which Figure 1 is a detail pe'-spcetive View of ny improvednaehiuehowingthesamemounted' on a. bench or like supportand connected up e to an overhead'shaft foridriving. Fig. 9 is a. Fig. 3 is a transrerex-'ertieal sectioal View of thesane, par-fly broken away. Fig. 4: isadetail perspective View 'of one of the bit's or cutters. Fig. 5 is a detail perspect-ive view of .one of the brackets attaehed to the p1a t-e rest. Fig.

6 isalike View of one of the brackets earried 'by the guides for the cntter-head. Fig.-7 is View of a modified form of cuttr-head, which may' be employed forgthe chipping of substaitially oval form glass plate's. Fig. Disa longitudinal sectional-viewhf a part of the plat-rest, showing a modified' form .of con 'with the ,glass plate being chipped during the descent of the' eutter-head, each cutter forming one chipor not'ch in the plate, the latte- 'being supported in an nclined position on a rest arranged in front'bf the cutter-head.

The machine .may be' monnted in any suitable .nanner and may also be driven by any suitable means to impart the vertically-recip- .-ocatory movement to the eutter-head. As

mountcd themaehiue directly upon a workbench, alongthe front edge thereof, and drive the same by a pitnan connected with overhead shafting. As this is a practieal arrangement I have illustrated the same in the acconpanying drawings. v

To eonstruct the machine, I provide a pair of guides 1, which where thedevice is to he' neunted in the namer I have stated and shown in the acconpanying drawings are each provided with a h-aeket 2, apertured to 'rec'eive &bolt or like means, by which the guides are securely fastened to the hench 3. These guides 1 are provided on their inner edges with guideways t to receive the edges ot' the verticaiiy-reciproeatory cutter-head 5, which operates therein. The guideways I 'have in practice preferahly madeV-shaped, and the edge of the cutter-head wiii consequently he constructed aecordingiy to fit the guideways;

- b'ut thisjs not essential, and these guideways allows the free working of the pitman without bringing any strain or pul! thereof against the cut! er-head. This cutter-head is provided on its rear face with a hushing or eniargement 10, which extends at an angle across the said rear face from a point at or near one upper oorner theref -to a point at or near the opposite lower corner. Through this enlargement {or bushing and through the eutter-head'is a series of openings l-l, whiehin practice I have pret'e'abiy made round and which receive the cntters, bits, or chippers 12.' These eutters or hits I preterahly make square in cross-section, wherehy when they are inserted in the round holes-ll the 'edges of the cutters or hits engage-the wallsof the holes and liahility of the culters or hits turning in the holes is'ninimized. The cutters or hits at their forward ends are rounded'off on the underneath face to form the chipping-points 14 of the hits, these chipping points 'projecting slightly beyond the front face of the eutter-head and the hits extending at an angle aeross' -the face of the eutter-head, as seen in Fig. 1', the lowe rmost bit being adjacent to one lower corner of the head and the upperinost hit'heing adjaeent to the opposite upper co'ner of the cntter-head. The hits are secureiy held in position hyneans of set-screws 15, arranged in the enlargement or boss 10, one set-screw for each hit.

The giass pi-ate to he chi pped is supported in t'rontof the cutter-head with the edge of 'the giass plate resting against the face of the cutter -head, 'and `for supporting the piate I provide an adjustahle rest 16, comprising a har or plate, to which is attached a pair of angle-hrackets 17, that are in turn Secured to a pair of angle hrackets 18, attached to the guides 1. The brackets 17 are provided with slot 17" and the braekets 18 with siots lS', and through these Slots are passed set-screws or bolts 12). Byloosenig" the set-screws or bolts 19 the rest 16 maybe adj usted to give the same any inc'iination desired and the depth of the chip made in the giass piate being op erated upon thereby .va-ried. VVhere-the device is mounted upon a work-hench, as illus;

trated, clearance forthe progecting ends of the hits oi: cutters maybe provided hy cut ting away a part ot the work-hench, as shown at 20 in Fig. 7, or the hrackets may he' at'- taehed to the heneh in sucha manner as-to afford the desired-clearance. In order to pro'- -vide for iongitu'dinai adjustment of therest 16, I preferahly provide the same' with aseries of 'hoies 21 and-connect the hrackets 17 by means of bolts or set-screws. Imay also empioy a stop for the end of the glass plate heing operated 'upon to rest against where a series :of piates aii of the same size are being chipped. To this end I 'may provide a s1ot-` ted rest 16', such as shown in Figs. 7 and 9, the adjustabie stop 22 being held hy a bolt or set-screw Operating through the siot 23, in

said rest. XVhen the proper position for the glass plate on the rest and'in front of the cutter-head has heen determined, the stop2'2 may he set, so .that the ends of the plates 'can be brought. against the stop, thus reiieving the operator of the care of seeing that the plate.

is always positioned exactly where the cutters will eaehengage the same.

In Fig. 10 1 showa form of cutter-head 5% the lower edge of which is on an inciine and which is notched to form stepped chipping teeth or hits G, which sueces'sively engage with-the giass and chip out the sections thereof in 'the same manner as isaceonpiished hy the hits carried by the pintein the forms shown in Figs. 1 and 8.

While I may and machine as above described and as shown in Figs. 1, 7, and` `1O for the chipping of glass platesof an ovalform, yet itwill he ohserved that by reason' of the edge of the plate being oval only one" or'pe'rh'aps twoof the cutters may be empioyed on such form' of pia-te; In 'order to form a series of chips or notches in an o'val-shaped piate in the' same. manner as may he doneiinan ohlong or square plate, 1 provide a cutter -head ot' the'form shown in Fig. 8, the head 5' havingextending guides 6' to worl nthe giiideways in the guides 1. This form of eutterhead is provided on its reat face with an .eniargementg or boss, and

do enp lov the form of' the openings for the eutters or hits are through this boss and through theplate in the'same manner as heretotore described, Likewise the Connection otthe pitman with this form of eutter-head is madein any suitable' manner. It is of course understood that 'w th ths form of cutter-head a support or rest conornng i to the style of eutter-head will he empioyed.

In operation the glass plate to be chipped heen adjusted to the desiredinciination.

'is-placed on the rest 16, the latter :having hen notion is inpartcd to the shaft &this

' shaft, thronghthe media of the cranlr-"disk so th'a't only one bit is engaging the plate at.

once, obviting'the danger of -cracking 'the plate, whichwonld be occasioned were all the bits 'to strike it at the same time.

-hed ascends the. operator simply turns the plate with the opposite edge in-position to be chipped as the .cutter-head again descends. The bits being oi uniform size, and each therefore engagingan equal amount ofsnrface of the glass plate, the notches or chips c'ut in the plate are nniform throughout,'be-

sides being clean cut, with no rough or ragged edges, as is .the case wherethe part is chipped zo out by a hand-tool.

- stop 22 is employed, it will be obser'ed that the eare required to be exercised by the'ope'rater is reduced to .a minimum, as after the -stop h's been set and a series or quantity of 25 plates-all of the same size are to be chipped the one side edge or one end of the plate is simply placed against the'stop, assuring 'the proper positioning of the by the cutters or bits. i

-While -I have herein shown and described at length the inventioi in detail as it'ispracticed by me, yet I do not wish to unduly limit myself to theexact Construction shown and described. as it will beobservedthat in the plate to be engaged practice ofthe same'varions changes may be made in th'edetails of' constrnction-without departiggfromthe general spirit of myinvention. i

' Having f ully described my invention, what (o I claim as new, and desire to secure by Letters Patent, is

' 1. In a machine Qf the class described, the' eombination with the guides, and an adjustable rest -for the plate to be chipped, of-a vertically--cciprocatory cu'tter-head, means for .imparting a recprocatqry mouement to' said head', and series,of'entters" or bits carried by the head and arranged to-;subcessi'vely engage the plate to -be chippemsubstantially so asdescribed.

2. In combination with; the guides," and a v support threforf& erticalJyf-reciprocating cutter-head, means fur reeiprgcating said eu't- 'ter-head, 'and a series 'of 'citters or bitscar-- riedby the cutter-headand extending atan E angleacross the' face .ofzthe same ,`substa'ntially *asdescribed' I j nationwitha suitable support,;of a-i ertically `6o reciprecatory cutterehead, means feoperat:

I ing said `cJ .'tter-hea 1,and a sericsmf bits or cutters carried by said head and exteuding at' an a'ngle across the facepf tl'headvheteby they sucessiyely engage the plat'e to be schipped, 'as the cutter-head descends, sub

- staitially a's described. :4. .In a glass-chinping machine, the combi- As he' io last bit; passes the plate and as ithe'c'utter Where the adjustable nation with suitable supporting means, and an adjustable rest for the plate to be chipped, 1

mansfor operatingsaid cutter-head, and a seriesof adjustable cutters or hits carried hy said head and extending atan angle across cne face of thesame, substantially as described.

guides, a suitable support to which the guides areaifixed, an adjustablerest supported from the guides, a verticall'y-reciprocatory cutteb head Operating in' said guides, means; connected to the upper end' of the cutter-head for reciprqca'tin g the same, andasen'es of cutters headacross the ,face 'thereof, as' and for the purpose described.

nation with supporting' means for the plate to' be chipped, of a-vertically-reciprocatory cutter-head, means for' Operating 'said' cutterhead, and a: series' of cutters or bits car'iedby said cntter-head and arranged to successively engage with the plate to be chipped, substantially as described.

` 7. In a glass-ohipping machine, the combito bechipped, of a vertically reciprocatory cutter-head, means foroperating said cutterhead, and' a series of cutters adjustably: mounted in'thecutter-head and extending'::. across the face thereof' at an angle whereby they snccessively engage the plate being means for seem-ing the cutters or hits in the adj usted position, substantially as described.- 8. ;In a glass-chipping machine, the combi-- nation with an inclined rest for supporting theplate'to be chipped, of a vertically-recipro'- cato'y cutterhead,-a series of cuttersor hits' carried by said head and ar'anged to successively engage the plate being chipped, and means for Operating the cutter-head, substan tially as described. -9. In a glass-chipping machine, the combinatio'n with an -inclined rest for the plate to series of cutters or bits adjustably mounted in' the ontter-head and extending at an angle across the face thereof, means connected to the cutter-head for reciprocating the same,` substantially as described. i

10. In aglass-`cl`1ipping machine, the combination with a support for the plate to be chippe l, of. a reeiprocato'ry cutter-head, a serieofcttcrs carried by saidhead and being arranged outof horizontal alinement with each other, and means forpperatin g the head, snbstantially as described. j 11. In a glass-chippingmachine,.the combi-. nation with a rest or support for the'plate to be chipped, an adjustable stop c'arried bysaid mshef a vertically-reciprocatory cutter head, -aseries of cutters or hits carried by 'said head, g nd means for Operating said cutter-head, Ijsubstantiailyas described; w

. Ina glass-chipping machine, the combiof a' vertically -jreciprocato'ry cutter-head, 19

` 5, In a glas's chipping machine, a pair of 75 or bits arranged t anangle in said cutter- A `6.- In' a glass-chippi g.mchine,-the combi- 85' nation with an'adjustable rest for the plate !OO chipped as the cutterhead descends, and

be chipped, of a reciprocatory cutter-head, 8"

nation with a. verticaHy-reciprocating cutterhead,`cutter's earried b'y said head and means forreciprocating said head, of a rest for the plateto .be chipped, said rest adjustable to 5 ;different inc1inations,`as and fer the purpose 'describedL 13. In a g1a,ss-chipping nachi''e, a. verti caily-reciprocating cutter-head, a series of cutters catried thereby, means !Em- Operating e the entitet-head, and arest or support for the late to he ehipped, said rest or sup'port being aj ustabie longiti'dinaiiy and.- t o different inclina-tions, as and foithe purpose deseribed.

14:. In sglass-chipping machine,-.a. Vertu 4 s caliyreeiprocating eutter having. chipping teeth or hits, means whereby 'said .chipping teeth or hits are brought intaengagementwith the g1ass,' one at a time, and means-fer 'supporting the in positionto be engaged by said teeth or'bits; zo

1:3. Iu combinatjon with the guides, the giass-chipping means 'moun therei' 'and the means for Operating the same, an adjustable inciined'snpport-." '16. In combination'with the glas's-chipping :5 means,- pairoizsiotted brackets, a suppo`rt-,

slotted brackets secud'tosaid support, and

asecuringneans engagng thegslots of said' brakets. 7

In testimony-whereof I afxmy signature 30 in the presence, o f two witnesses.

4 :FRANK HL'BURCH. :Witnesseszi 3 5 4 ADOLPH`-L' IAEULIN,. A..M. WILSON.- 

